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  • Question
  • Which command will create a dynamic pool named Todd that will provide you with 30 global addresses?


  • Options
  • A. ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.240
  • B. ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.224
  • C. ip nat pool todd 171.16.10.65 171.16.10.94 net 255.255.255.224
  • D. ip nat pool Todd 171.16.10.1 171.16.10.254 net 255.255.255.0

  • Correct Answer
  • ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.224 

    Explanation
    The command ip nat pool <name> creates the pool that hosts can use to get onto the global Internet. What makes option B correct is that the range 171.16.10.65 through 171.16.10.94 includes 30 hosts, but the mask has to match 30 hosts as well, and that mask is 255.255.255.224. Option C is wrong because the pool name has a lower case "T" in the pool name. Pool name's are case sensitive.

  • Network Address Translation problems


    Search Results


    • 1. Which of the following are disadvantages of using NAT?

      1. Translation introduces switching path delays.
      2. Conserves legally registered addresses.
      3. Causes loss of end-to-end IP traceability.
      4. Increases flexibility when connecting to the Internet.
      5. Certain applications will not function with NAT enabled.
      6. Reduces address overlap occurrence.

    • Options
    • A. 1, 3 and 5
    • B. 3 and 4
    • C. 2, 4 and 5
    • D. 1 and 3
    • Discuss
    • 2. Which command will show you all the translations active on your router?

    • Options
    • A. show ip nat translations
    • B. show ip nat statistics
    • C. debug ip nat
    • D. clear ip nat translations *
    • Discuss
    • 3. Which of the following is considered to be the address after translation?

    • Options
    • A. Inside local
    • B. Outside local
    • C. Inside global
    • D. Outside global
    • Discuss
    • 4. Which of the following would be good reasons to run NAT?

      1. You need to connect to the Internet and your hosts don't have globally unique IP addresses.
      2. You change to a new ISP that requires you to renumber your network.
      3. You don't want any hosts connecting to the Internet.
      4. You require two intranets with duplicate addresses to merge.

    • Options
    • A. 1, 2 and 4
    • B. 2 and 4
    • C. 3 only
    • D. All of the above
    • Discuss
    • 5. Which of the following is considered to be the address before translation?

    • Options
    • A. Inside local
    • B. Outside local
    • C. Inside global
    • D. Outside global
    • Discuss
    • 6. Which command will show you the summary of the NAT configuration?

    • Options
    • A. show ip nat translations
    • B. show ip nat statistics
    • C. debug ip nat
    • D. clear ip nat translations *
    • Discuss
    • 7. Which of the following would be a good starting point for troubleshooting if your router is not translating?

    • Options
    • A. Reboot.
    • B. Call Cisco.
    • C. Check your interfaces for the correct configuration.
    • D. Run the debug all command.
    • Discuss
    • 8. Which command will clear all the translations active on your router?

    • Options
    • A. show ip nat translations
    • B. show ip nat statistics
    • C. debug ip nat
    • D. clear ip nat translations *
    • Discuss
    • 9. Which command would you place on interface on a private network?

    • Options
    • A. ip nat inside
    • B. ip nat outside
    • C. ip outside global
    • D. ip inside local
    • Discuss
    • 10. Which are considered the methods of NAT?

      1. Static
      2. IP NAT pool
      3. Dynamic
      4. NAT double-translation
      5. Overload

    • Options
    • A. 1 and 6
    • B. 3 only
    • C. 1, 3 and 5
    • D. All of the above
    • Discuss


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